package com.atguigu.filter;

import lombok.extern.slf4j.Slf4j;
import org.springframework.cloud.gateway.filter.GatewayFilterChain;
import org.springframework.cloud.gateway.filter.GlobalFilter;
import org.springframework.core.Ordered;
import org.springframework.http.HttpStatus;
import org.springframework.stereotype.Component;
import org.springframework.web.server.ServerWebExchange;
import reactor.core.publisher.Mono;

/**
 * TODO
 *
 * @Description 常规的过滤器
 * @Author dubao
 * @Date 2023年 06月 17日 16:29
 **/
@Component
@Slf4j
public class MyLogGateWayFilter implements GlobalFilter, Ordered {

    @Override
    public Mono<Void> filter(ServerWebExchange exchange, GatewayFilterChain chain) {
        log.info(" ********** welcome to MyLogGateWayFilter*******");

        String test = exchange.getRequest().getQueryParams().getFirst("test");
        if (test == null) {
            log.info("test字段为空！");
            exchange.getResponse().setStatusCode(HttpStatus.NOT_ACCEPTABLE);

            return exchange.getResponse().setComplete();
        }
        return chain.filter(exchange);
    }

    @Override
    public int getOrder() {
        return 0;
    }
}
